What is a knockdown rebuild in Melbourne?

A knockdown rebuild (KDR) is where you demolish your existing Melbourne home and build a brand-new one on the same block. You keep the land, the address and typically the postcode-level infrastructure connections, but everything above ground is replaced with a modern, energy-rated build.

How much does a knockdown rebuild cost in Melbourne in 2026?

A Melbourne KDR typically costs $580,000-$920,000 all-in for a 250-320m² home on a standard 500-600m² block, split roughly as: demolition $18,000-$32,000, site prep $12,000-$28,000, new build $480,000-$780,000 and permits/soft costs $30,000-$60,000. Feature blocks in Kew, Brighton or Hawthorn can push $1.4M+.

Is a knockdown rebuild cheaper than a major renovation in Melbourne?

Once a Melbourne renovation exceeds ~50% of the existing home's value, KDR is usually cheaper per m² AND delivers a higher-value asset. Older Melbourne homes (pre-1980, timber-frame, single glaze) especially favour KDR because retro-fitting insulation, wiring, plumbing and 7-star energy compliance costs more than starting fresh.

Do I need to move out during a Melbourne knockdown rebuild?

Yes. From demolition through handover you'll be off-site for 10-14 months. Most Melbourne families rent locally to keep kids in the same school zone; expect $2,800-$5,200/month for a comparable rental in your suburb. Some builders offer relocation-cost inclusions in their fixed-price contract.

Can I knockdown rebuild any Melbourne home?

Not automatically. Homes on the Victorian Heritage Register or under a council Heritage Overlay may be refused demolition or require replacement designs to match streetscape character. Trees on the block over 10m in canopy can also trigger Vegetation Protection Overlay setbacks. Always check overlays via the Plan Victoria portal before signing anything.

How long does a Melbourne KDR take from decision to move-in?

14-22 months typically: 2-3 months design and permits, 1 month demolition and site prep, 10-15 months build. Overlay-heavy suburbs (Camberwell, Hawthorn, Yarraville) can add 3-6 months to permitting. Volume builders on greenfield blocks can compress this to 12 months on a standard block.

Is a KDR eligible for the First Home Owner Grant in Victoria?

Only if you're a first-home buyer AND the property has never been used as a residence by you or a related party. If you already own the block and are demolishing your existing home, you're typically NOT eligible for the FHOG. Talk to the State Revenue Office before assuming eligibility.

Should I use a specialist KDR builder or a volume builder in Melbourne?

Volume builders (Metricon, Simonds, Henley) have strong Melbourne KDR programs with fixed-price site cost caps - efficient for standard blocks. Specialist / custom builders (Burra Built, small architect-partners) suit tight blocks, heritage streetscapes, sloping sites or complex overlays where a template design won't fit. Get quotes from BOTH categories on the same specification sheet.

Should the demolition and rebuild be one contract or two?

A single "turn-key" KDR contract with your builder gives you one point of accountability and simpler progress-payment structure. Splitting demolition to a specialist can save $3,000-$8,000 on the demolition line but you take on coordination risk between the two contracts. For 90% of Melbourne families the single-contract path is cleaner.

What Melbourne KDR "site costs" are commonly missed in a quote?

Watch for: rock excavation ($8,000-$25,000 in Doncaster, Templestowe, Warrandyte), asbestos removal ($6,000-$15,000 in pre-1990 homes), tree protection zone (TPZ) fencing and arborist reports, service disconnect/reconnect fees (~$3,500 all up), and Victorian OH&S "site setup" for tight-access blocks. Provisional sums for these line items should have caps in writing.

How do I compare Melbourne KDR quotes on a level playing field?

Insist all builders quote on the same 12-line inclusions sheet: demolition scope, disposal (EPA levy included?), tree protection, service disconnect, site set-up, slab type, frame type, roof cover, external cladding, internal linings, glazing rating, and Bushfire Attack Level (BAL) compliance. Different-priced quotes on the same sheet reveal real value; quotes on different sheets are impossible to compare.

What red flags should I look for in a Melbourne KDR quote?

Unpriced provisional sums >5% of contract value, no HIA or MBA fixed-price contract template, no VBA practitioner registration cited, "site cost TBC after soil test" without a cap, missing Domestic Building Insurance (DBI) certificate, and no BAL (Bushfire Attack Level) assessment on outer-metro blocks. Any one of these is fine to negotiate; two or more usually means walk away.

Do Melbourne KDR builders provide fixed-price contracts?

The best Melbourne KDR builders provide HIA or MBA fixed-price contracts with capped provisional sums and clear variation clauses. Cheaper "cost-plus" arrangements exist but expose you to open-ended overruns. Domestic Building Insurance (DBI) is legally required in Victoria for jobs above the state threshold - ask for the certificate before deposit.

Can I use my own architect and have a Melbourne KDR builder deliver?

Yes - the "design-then-tender" path suits complex Melbourne blocks and heritage streetscapes. You pay an architect $18,000-$65,000 for concept-through-tender-documents, then tender to 3 KDR-capable builders. Total design fees are higher than a volume builder's in-house design service but you own the plans and can push value engineering.

Do Melbourne KDR builders include demolition in their standard package?

Some do (turn-key), most quote it as a "provisional sum" until soil, asbestos and services are assessed. Turn-key inclusions typically cap demolition at $22,000-$28,000 for a standard weatherboard/brick veneer; anything over that (rock, asbestos, difficult access) is charged as an itemised variation. Always ask for the cap in writing before contract signing.

What warranty should I get on a Melbourne KDR?

Victorian law requires a minimum 6-year structural warranty and 2-year non-structural warranty from the builder, backed by Domestic Building Insurance. Beyond the statutory minimum, top Melbourne KDR builders offer 10-year structural warranties and 25-year Colorbond roof warranties. Get all warranties in writing on the fixed-price contract, not verbal.

How does bushfire (BAL) affect a Melbourne KDR quote?

Outer-metro Melbourne blocks (Yarra Valley, Dandenong Ranges, Macedon, Mornington Peninsula) may fall under a Bushfire Attack Level (BAL) rating - BAL-12.5, 19, 29, 40 or FZ. Each rating triggers different compliance costs: BAL-19 adds $8,000-$18,000 to a standard build; BAL-40 or FZ can add $60,000+. A BAL assessment ($800-$1,500) is worth commissioning BEFORE tender.

When is Domestic Building Insurance (DBI) triggered in Victoria?

DBI is legally required in Victoria for any domestic building work over the state threshold. It protects you if the builder dies, disappears or becomes insolvent before completion. Your Melbourne KDR builder MUST provide a valid DBI certificate BEFORE you pay the deposit. If they can't, walk away and report to the VBA.

What progress payment schedule is standard for a Melbourne KDR?

Victorian regulations cap the deposit at 5% of contract value and set standard progress stages: base 10%, frame 15%, lockup 35%, fixing 20%, practical completion 15%. Any Melbourne KDR contract asking for more than 5% deposit or front-loading payments before the slab is legally non-compliant.

Can I make design changes after signing my Melbourne KDR contract?

Yes but they are treated as "variations" and priced under a Variation Order. Cheap variations (paint colours, tile selections) are usually free during PC selection phase; structural changes after frame stage can add $8,000-$40,000 depending on scope. Always confirm the variation policy on the contract, including administration fees.

What happens if my Melbourne KDR builder goes into liquidation mid-build?

Domestic Building Insurance (DBI) covers you for the cost to complete the work with another builder up to the policy limit (typically $300,000 in Victoria). Notify the VBA and the DBI insurer immediately, freeze all further payments, and lock down the site. A specialist Melbourne building lawyer will be worth every dollar in this situation.

Do I need my Melbourne KDR builder registered with the VBA?

Yes - Domestic Builder (Unlimited) or Domestic Builder (Manager) registration with the Victorian Building Authority is legally required for any residential work over the state DBI threshold. Verify their registration on the VBA public register BEFORE signing anything. Signing with an unregistered builder voids your DBI cover.

What defects should I document at Practical Completion (PC) on a Melbourne KDR?

Walk the home with an independent building inspector at PC. Document every defect on a written defects list before final payment. Common Melbourne PC defects: paint touch-ups, tile alignment, cabinet handles, weather seals, roof flashing, and rangehood ducting. Statute of Limitations for building defects in Victoria is 10 years - keep the PC inspection report forever.

Knockdown Rebuild Melbourne

Knockdown Rebuild Melbourne: What Actually Applies in 2026

Name: BuildPilot Adelaide Building Industry Dataset
Creator: BuildPilot
License: https://buildpilot.com.au/terms

Overlays, permits, demolition costs. A curator's read on what changes when a Melbourne buyer knocks down and rebuilds - and what stays the same as a new build.

See Melbourne council guides

Planning a knockdown rebuild? Find a Melbourne builder in 60 seconds

Tell us your build type and budget and we'll match you with vetted Victorian builders that handle knockdown rebuilds on your block.

What are you building?

Where?

Rough budget?

Free · no obligation · builders contact you, never the other way around.

Building in Adelaide? See our Adelaide knockdown rebuild guide

Councils covered

Melbourne LGAs on site

Regulator

VBA

Victorian Building Authority

Planning

Plan Vic

Planning Victoria + council

Waste levy

EPA

Victoria Landfill levy applies

The Melbourne overlays that catch KDR most often

A knockdown rebuild in Melbourne almost always involves at least one overlay on the planning scheme, and those overlays are what drive most of the "surprise" cost between an initial quote and a signed contract. The most common: Heritage Overlay (HO), Neighbourhood Character Overlay (NCO), Significant Landscape Overlay (SLO) and Vegetation Protection Overlay (VPO).

Every Melbourne council publishes its own local planning scheme via the Planning Victoria portal. Before you request a KDR quote, look up your parcel on VicPlan (linked below), note the overlays that apply, and ask any builder you shortlist how each one affects their design fee and their timeline. A responsible Melbourne builder will answer in specifics; a bad one will hand-wave.

Look up your parcel on VicPlan (free, official Planning Victoria tool)
Note every overlay code that applies (HO, NCO, SLO, VPO, DDO...)
Read the council's local schedule for each overlay
Ask your builder to price the design response to each overlay separately
Factor an extra 8-16 weeks for the permit path where a heritage overlay applies

Demolition in Melbourne: what actually happens

The demolition line item on a Melbourne KDR tender is usually more complicated than in a similar Adelaide project. Two drivers: pre-1990 homes commonly carry asbestos which triggers a licenced-removal process under WorkSafe Victoria, and Melbourne's Environment Protection Authority landfill levy is meaningfully higher than the SA equivalent per tonne of construction and demolition waste.

A responsible Melbourne demolisher will provide a written asbestos assessment, a waste management plan, and a completion certificate. If your builder subcontracts demolition, ask to see the sub’s VBA registration for demolition and their environmental compliance history. Both are on public registers.

Permit path: council by council

BuildPilot has published nine Melbourne LGA guides so far (Melbourne, Yarra, Port Phillip, Stonnington, Boroondara, Glen Eira, Whitehorse, Bayside, Whittlesea). Each covers the local planning permit path, the overlays that apply, typical processing timeframes and the council's contact details. The nine at /vic cover most of the KDR volume in inner and middle Melbourne today. More councils land as the Victoria edition rolls out.

Official Victorian sources referenced

Top 3 things buyers don't consider when building

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Top 3 things buyers don't consider when building

Many buyers get caught out by surprises during the build process. In this episode, we break down three key things most people overlook - unexpected costs, unclear exclusions, and design oversights - that can make or break your new home experience.

Watch full episode

Frequently asked

Do I need a planning permit for a KDR in Melbourne?+

It depends on the overlays that apply to your specific parcel. Some blocks require a planning permit for demolition itself under a heritage overlay; others only require a building permit. VicPlan will tell you in about 30 seconds - link below.

How much does demolition cost in Melbourne?+

The all-in demolition line item in Melbourne is driven by three variables: house size, asbestos presence, and site access. A single storey brick veneer on a straightforward site sits at one end of the range; a heritage weatherboard with confirmed asbestos on a tight inner-city block sits at the other. A responsible demolisher will provide a written quote after a site inspection, not a phone estimate.

Can I keep the slab and just rebuild on top?+

Rarely worth it in Melbourne KDRs, though technically possible. The existing slab was designed for a specific footprint and load; your new home almost never lines up. Most Melbourne builders will price a full slab replacement as the default, and quote the "reuse" case only after a structural engineer signs off - which is another cost.

How long does a Melbourne KDR take end to end?+

The rough shape: 6-16 weeks for design and council approval (longer with heritage or neighbourhood character overlays), 2-4 weeks for demolition and site prep, then 8-14 months for construction depending on home size and builder throughput. Every step depends on your council, your overlays and your builder - none of these numbers is a promise.

Do BuildPilot's Melbourne KDR figures apply state-wide?+

The overlay framework and demolition regs are state-wide (VBA, EPA Victoria, Planning Victoria are all state-level). Council-specific timeframes and fees differ; that is why we publish per-council guides at /vic.

By where you are in the journey

Every question, answered

Grouped by stage so you can jump to what matters right now - from big-picture research through comparing quotes to reading the fine print before you sign.

Just researching7 questions

Comparing builders and quotes10 questions

Signing the contract6 questions

Your next steps

What to do next

Do this now

Melbourne building costs 2026

Real KDR numbers, not stickers.

Open guide

In the next 2 weeks

Choosing a KDR-capable builder

The 5-point shortlist.

Open guide

Before you sign

DBI + fixed-price contract

The two documents that protect you if the builder folds.

Open guide

Note: the stories below are Adelaide-based clients - the underlying builder-matching process is identical for Melbourne buyers.

How BuildPilot handles knockdown rebuild - real client stories

Ingle Farm, SA·Knockdown rebuild

Sterai Residence

A practical, well-planned knockdown rebuild on a tricky triangular block in Ingle Farm.

Read the case study

Christies Beach, SA·Knockdown rebuild with custom garage and shed integration

Tanya & Chris

A knockdown rebuild in Christies Beach designed around a slope, a rear easement and a Holden HQ Monaro shed.

Read the case study

Browse all case studies

Building in Adelaide instead?

See our Knockdown Rebuild guide

Keep reading

Related guides

Section 173 Agreements

Title encumbrances that kill KDR designs

Read guide

Rescode Setbacks Explained

Clauses 54 / 55 / 56 buildable-envelope rules

Read guide

Melbourne Build Cost Report 2026

What a Melbourne turn-key build really costs by corridor

Read guide

Knockdown Rebuild Adelaide

Full teardown vs. reno vs. new-build decision guide

Read guide

Pick the era of the house coming down

The old house sets the demolition price and the surprises. Roughly when was it built?

Asbestos in the fabric

Almost certainly

Lead paint

Likely

Demolition adder for hazmat

$5K-$15K

Old wiring and pipes to abolish

Likely

Triple-fronted cream or clinker brick veneer, tiled roof, timber floors on stumps, single carport, a lemon tree out the back.

Typical for the era, not a survey of the house. A licensed asbestos assessment before the demolition quote is the only number that counts.

Six questions that save the most money

Is your VBA registration current, and what class?

DB-U for unlimited domestic work. Check it on the VBA register and the disciplinary register.

Show me the Domestic Building Insurance certificate for my job.

DBI is mandatory before more than a 5% deposit. No certificate, no deposit.

What soil class is my block and is the slab priced for it?

Basalt clay in the west is Class H to E. A "standard" site allowance is a variation waiting to happen.

Is the site-cost allowance fixed or provisional?

Provisional means you pay the difference. Ask for it fixed after the soil test and survey.

Is the house all-electric, and what is the induction and heat-pump spec?

No new gas connections in Victoria since 2024.

Which benchtop material replaces engineered stone?

Banned since July 2024. Porcelain, natural stone or laminate.

Knockdown Rebuild Melbourne

Knockdown Rebuild Melbourne: What Actually Applies in 2026

Planning a knockdown rebuild? Find a Melbourne builder in 60 seconds

The Melbourne overlays that catch KDR most often

Demolition in Melbourne: what actually happens

Permit path: council by council

Frequently asked

Every question, answered

What to do next

Melbourne building costs 2026

Choosing a KDR-capable builder

DBI + fixed-price contract

How BuildPilot handles knockdown rebuild - real client stories

Related guides

Section 173 Agreements

Rescode Setbacks Explained

Melbourne Build Cost Report 2026

Knockdown Rebuild Adelaide

Pick the era of the house coming down

Six questions that save the most money

What the pros see that the display home hides

How to read a builder's quote

Inspect your own build, stage by stage

How to read a floor plan

Match with builders who actually build on your block.